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WO2014027775A1 - Procédé et terminal pour effectuer une émission en liaison montante à puissance réduite - Google Patents

Procédé et terminal pour effectuer une émission en liaison montante à puissance réduite Download PDF

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Publication number
WO2014027775A1
WO2014027775A1 PCT/KR2013/006978 KR2013006978W WO2014027775A1 WO 2014027775 A1 WO2014027775 A1 WO 2014027775A1 KR 2013006978 W KR2013006978 W KR 2013006978W WO 2014027775 A1 WO2014027775 A1 WO 2014027775A1
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WIPO (PCT)
Prior art keywords
mhz
band
information
uplink
terminal
Prior art date
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Ceased
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PCT/KR2013/006978
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English (en)
Korean (ko)
Inventor
이상욱
황진엽
정만영
양윤오
임수환
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LG Electronics Inc
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LG Electronics Inc
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Publication date
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Priority to US14/416,572 priority Critical patent/US9635607B2/en
Publication of WO2014027775A1 publication Critical patent/WO2014027775A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/248—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where transmission power control commands are generated based on a path parameter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a method and a terminal for performing uplink transmission with reduced power.
  • 3GPP 3rd Generation Partnership Project
  • LTE long term evolution
  • UMTS Universal Mobile Telecommunications System
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier-frequency division multiple access
  • 1 shows a 3GPP LTE wireless communication system.
  • a wireless communication system includes at least one base station (BS) 20.
  • Each base station 20 provides a communication service for a particular geographic area (generally called a cell) 20a, 20b, 20c.
  • downlink downlink
  • uplink uplink
  • each service provider may provide a service in a different frequency band.
  • one disclosure of the present disclosure provides a method of transmitting while reducing the transmission power to an appropriate level.
  • the method may include receiving system information from a base station.
  • the system information may include one or more of first information on an operating band and second information on an uplink bandwidth.
  • the method includes receiving a network signal from the base station regarding further power reduction; When the operating band indicated by the first information is in the range of 777 MHz to 787 MHz, and the bandwidth indicated by the second information is 5 MHz in the range of 777 to 782 MHz, the band of the public safety network located adjacent to the network signal according to the network signal. Determining an additional amount of power reduction required to reduce interference of the device; And performing uplink transmission with the reduced power.
  • the determined power reduction amount may be different depending on whether the band of the public safety net is spaced 1 MHz or 2 MHz apart from the operating band.
  • the band of the public safety net is in the range of 768 ⁇ 776MHz, and in the case of 2MHz apart from the operating band, the band of the public safety net may be in the range of 769 ⁇ 775MHz.
  • the determined power reduction amount may be different depending on the start position of the uplink resource block and the number of consecutive resource blocks.
  • the terminal may include an RF unit for receiving system information from the base station, and a network signal for further power reduction from the base station.
  • the system information may include one or more of first information on an operating band and second information on an uplink bandwidth.
  • the processor may further include a processor configured to determine a required amount of power reduction and to control the RF unit to perform uplink transmission with the reduced power.
  • 1 is a wireless communication system.
  • FIG. 2 shows a structure of a radio frame according to FDD in 3GPP LTE.
  • 3 shows a structure of a downlink radio frame according to TDD in 3GPP LTE.
  • FIG. 4 is an exemplary diagram illustrating a resource grid for one uplink or downlink slot in 3GPP LTE.
  • 5 shows a structure of a downlink subframe.
  • FIG. 6 shows a structure of an uplink subframe in 3GPP LTE.
  • FIG. 7 is a comparative example of a conventional single carrier system and a carrier aggregation system.
  • FIG. 8 illustrates cross-carrier scheduling in a carrier aggregation system.
  • CA 9 is a conceptual diagram illustrating intra-band carrier aggregation (CA).
  • FIG. 10 is a conceptual diagram illustrating inter-band carrier aggregation according to an embodiment disclosed herein.
  • FIG. 12 specifically illustrates radiation in an outer band of the unwanted radiation illustrated in FIG. 11.
  • FIG. 13 illustrates a relationship between a channel band MHz and a resource block RB shown in FIG. 11.
  • FIG. 14 is an exemplary view illustrating a method of limiting transmission power of a terminal.
  • 16 is an exemplary view showing a frequency band considered in the present invention.
  • 17A, 17B, 18A, and 18B show experimental results for limiting a transmission strategy.
  • 20 is a block diagram illustrating a wireless communication system in which an embodiment of the present invention is implemented.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • the wireless device to be used may be fixed or mobile, and may include a terminal, a mobile terminal (MT), a user equipment (UE), a mobile equipment (ME), a mobile station (MS), a user terminal (UT), It may be called in other terms such as subscriber station (SS), handheld device, and access terminal (AT).
  • MT mobile terminal
  • UE user equipment
  • ME mobile equipment
  • MS mobile station
  • UT user terminal
  • SS subscriber station
  • AT access terminal
  • base station refers to a fixed station (fixed station) to communicate with the wireless device, in other terms such as eNB (evolved-NodeB), BTS (Base Transceiver System), Access Point (Access Point) Can be called.
  • eNB evolved-NodeB
  • BTS Base Transceiver System
  • Access Point Access Point
  • LTE includes LTE and / or LTE-A.
  • FIG. 2 shows a structure of a radio frame according to FDD in 3GPP LTE.
  • the radio frame shown in FIG. 2 is a 3rd Generation Partnership Project (3GPP) TS 36.211 V8.2.0 (2008-03) "Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release) 8) ".
  • 3GPP 3rd Generation Partnership Project
  • a radio frame consists of 10 subframes, and one subframe consists of two slots. Slots in a radio frame are numbered from 0 to 19 slots.
  • the time taken for one subframe to be transmitted is called a transmission time interval (TTI).
  • TTI may be referred to as a scheduling unit for data transmission.
  • one radio frame may have a length of 10 ms
  • one subframe may have a length of 1 ms
  • one slot may have a length of 0.5 ms.
  • the structure of the radio frame is merely an example, and the number of subframes included in the radio frame or the number of slots included in the subframe may be variously changed.
  • one slot may include a plurality of OFDM symbols. How many OFDM symbols are included in one slot may vary depending on a cyclic prefix (CP).
  • CP cyclic prefix
  • 3 shows a structure of a downlink radio frame according to TDD in 3GPP LTE.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • Physical Channels and Modulation Release 8
  • TDD Time Division Duplex
  • the radio frame includes 10 subframes indexed from 0 to 9.
  • One subframe includes two consecutive slots.
  • the time it takes for one subframe to be transmitted is called a transmission time interval (TTI).
  • TTI transmission time interval
  • one subframe may have a length of 1 ms and one slot may have a length of 0.5 ms.
  • One slot may include a plurality of orthogonal frequency division multiplexing (OFDM) symbols in the time domain.
  • OFDM symbol is only for representing one symbol period in the time domain, since 3GPP LTE uses orthogonal frequency division multiple access (OFDMA) in downlink (DL), multiple access scheme or name There is no limit on.
  • OFDM symbol may be called another name such as a single carrier-frequency division multiple access (SC-FDMA) symbol, a symbol period, and the like.
  • SC-FDMA single carrier-frequency division multiple access
  • One slot includes 7 OFDM symbols as an example, but the number of OFDM symbols included in one slot may vary according to the length of a cyclic prefix (CP).
  • CP cyclic prefix
  • a resource block is a resource allocation unit and includes a plurality of subcarriers in one slot. For example, if one slot includes 7 OFDM symbols in the time domain and the resource block includes 12 subcarriers in the frequency domain, one resource block includes 7 ⁇ 12 resource elements (REs). It may include.
  • a subframe having indexes # 1 and # 6 is called a special subframe and includes a downlink pilot time slot (DwPTS), a guard period (GP), and an uplink pilot time slot (UpPTS).
  • DwPTS is used for initial cell search, synchronization or channel estimation at the terminal.
  • UpPTS is used for channel estimation at the base station and synchronization of uplink transmission of the terminal.
  • GP is a section for removing interference caused in the uplink due to the multipath delay of the downlink signal between the uplink and the downlink.
  • DL subframe In TDD, a downlink (DL) subframe and an uplink (UL) subframe coexist in one radio frame.
  • Table 1 shows an example of configuration of a radio frame.
  • 'D' represents a DL subframe
  • 'U' represents a UL subframe
  • 'S' represents a special subframe.
  • the terminal may know which subframe is the DL subframe or the UL subframe according to the configuration of the radio frame.
  • the DL (downlink) subframe is divided into a control region and a data region in the time domain.
  • the control region includes up to three OFDM symbols preceding the first slot in the subframe, but the number of OFDM symbols included in the control region may be changed.
  • PDCCH and other control channels are allocated to the control region, and PDSCH is allocated to the data region.
  • FIG. 4 is an exemplary diagram illustrating a resource grid for one uplink or downlink slot in 3GPP LTE.
  • an uplink slot includes a plurality of orthogonal frequency division multiplexing (OFDM) symbols in a time domain and includes NRB resource blocks (RBs) in a frequency domain. do.
  • the number of resource blocks (RBs), that is, NRBs may be any one of 6 to 110.
  • an exemplary resource block includes 7 ⁇ 12 resource elements including 7 OFDM symbols in the time domain and 12 subcarriers in the frequency domain, but the number of subcarriers and the OFDM symbols in the resource block is equal to this. It is not limited.
  • the number of OFDM symbols or the number of subcarriers included in the resource block may be variously changed. That is, the number of OFDM symbols may change according to the length of the above-described CP.
  • 3GPP LTE defines that 7 OFDM symbols are included in one slot in the case of a normal CP, and 6 OFDM symbols are included in one slot in the case of an extended CP.
  • the OFDM symbol is for representing one symbol period, and may be referred to as an SC-FDMA symbol, an OFDMA symbol, or a symbol period according to a system.
  • the RB includes a plurality of subcarriers in the frequency domain in resource allocation units.
  • the number NUL of resource blocks included in an uplink slot depends on an uplink transmission bandwidth set in a cell.
  • Each element on the resource grid is called a resource element.
  • the number of subcarriers in one OFDM symbol can be used to select one of 128, 256, 512, 1024, 1536 and 2048.
  • a resource grid for one uplink slot may be applied to a resource grid for a downlink slot.
  • 5 shows a structure of a downlink subframe.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • Physical Channels and Modulation Release 10
  • the radio frame includes 10 subframes indexed from 0 to 9.
  • One subframe includes two consecutive slots.
  • the radio frame includes 20 slots.
  • the time it takes for one subframe to be transmitted is called a transmission time interval (TTI).
  • TTI transmission time interval
  • one subframe may have a length of 1 ms and one slot may have a length of 0.5 ms.
  • One slot may include a plurality of orthogonal frequency division multiplexing (OFDM) symbols in the time domain.
  • OFDM symbol is only for representing one symbol period in the time domain, since 3GPP LTE uses orthogonal frequency division multiple access (OFDMA) in downlink (DL), multiple access scheme or name There is no limit on.
  • OFDM symbol may be called another name such as a single carrier-frequency division multiple access (SC-FDMA) symbol, a symbol period, and the like.
  • SC-FDMA single carrier-frequency division multiple access
  • 7 OFDM symbols are included in one slot by assuming a normal CP.
  • the number of OFDM symbols included in one slot may change according to the length of a cyclic prefix (CP). That is, as described above, according to 3GPP TS 36.211 V10.4.0, one slot includes 7 OFDM symbols in a normal CP, and one slot includes 6 OFDM symbols in an extended CP.
  • CP cyclic prefix
  • a resource block is a resource allocation unit and includes a plurality of subcarriers in one slot. For example, if one slot includes 7 OFDM symbols in the time domain and the resource block includes 12 subcarriers in the frequency domain, one resource block includes 7 ⁇ 12 resource elements (REs). It may include.
  • the DL (downlink) subframe is divided into a control region and a data region in the time domain.
  • the control region includes up to three OFDM symbols preceding the first slot in the subframe, but the number of OFDM symbols included in the control region may be changed.
  • a physical downlink control channel (PDCCH) and another control channel are allocated to the control region, and a PDSCH is allocated to the data region.
  • PDCH physical downlink control channel
  • a physical channel in 3GPP LTE is a physical downlink shared channel (PDSCH), a physical downlink shared channel (PUSCH), a physical downlink control channel (PDCCH), and a physical channel (PCFICH). It may be divided into a Control Format Indicator Channel (PHICH), a Physical Hybrid-ARQ Indicator Channel (PHICH), and a Physical Uplink Control Channel (PUCCH).
  • PDSCH physical downlink shared channel
  • PUSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • PCFICH physical channel
  • It may be divided into a Control Format Indicator Channel (PHICH), a Physical Hybrid-ARQ Indicator Channel (PHICH), and a Physical Uplink Control Channel (PUCCH).
  • PHICH Control Format Indicator Channel
  • PHICH Physical Hybrid-ARQ Indicator Channel
  • PUCCH Physical Uplink Control Channel
  • FIG. 6 shows a structure of an uplink subframe in 3GPP LTE.
  • an uplink subframe may be divided into a control region and a data region in the frequency domain.
  • a physical uplink control channel (PUCCH) for transmitting uplink control information is allocated to the control region.
  • the data area is allocated a PUSCH (Physical Uplink Shared Channel) for transmitting data (in some cases, control information may also be transmitted).
  • PUSCH Physical Uplink Shared Channel
  • PUCCH for one UE is allocated to an RB pair in a subframe.
  • Resource blocks belonging to a resource block pair occupy different subcarriers in each of a first slot and a second slot.
  • the frequency occupied by RBs belonging to the RB pair allocated to the PUCCH is changed based on a slot boundary. This is called that the RB pair allocated to the PUCCH is frequency-hopped at the slot boundary.
  • the terminal may obtain a frequency diversity gain by transmitting uplink control information through different subcarriers over time.
  • m is a location index indicating a logical frequency domain location of a resource block pair allocated to a PUCCH in a subframe.
  • the uplink control information transmitted on the PUCCH includes a hybrid automatic repeat request (HARQ) acknowledgment (ACK) / non-acknowledgement (NACK), a channel quality indicator (CQI) indicating a downlink channel state, and an uplink radio resource allocation request. (scheduling request).
  • HARQ hybrid automatic repeat request
  • ACK acknowledgment
  • NACK non-acknowledgement
  • CQI channel quality indicator
  • the PUSCH is mapped to the UL-SCH, which is a transport channel.
  • the uplink data transmitted on the PUSCH may be a transport block which is a data block for the UL-SCH transmitted during the TTI.
  • the transport block may be user information.
  • the uplink data may be multiplexed data.
  • the multiplexed data may be a multiplexed transport block and control information for the UL-SCH.
  • control information multiplexed with data may include a CQI, a precoding matrix indicator (PMI), a HARQ, a rank indicator (RI), and the like.
  • the uplink data may consist of control information only.
  • FIG. 7 is a comparative example of a conventional single carrier system and a carrier aggregation system.
  • a single carrier system supports only one carrier for uplink and downlink to a user equipment.
  • the bandwidth of the carrier may vary, but only one carrier is allocated to the terminal.
  • a carrier aggregation (CA) system a plurality of CCs (DL CC A to C, UL CC A to C) may be allocated to the UE.
  • a component carrier (CC) means a carrier used in a carrier aggregation system and may be abbreviated as a carrier. For example, three 20 MHz component carriers may be allocated to allocate a 60 MHz bandwidth to the terminal.
  • the carrier aggregation system may be divided into a continuous carrier aggregation system in which aggregated carriers are continuous and a non-contiguous carrier aggregation system in which carriers aggregated are separated from each other.
  • a carrier aggregation system simply referred to as a carrier aggregation system, it should be understood to include both the case where the component carrier is continuous and the case where it is discontinuous.
  • the target carrier may use the bandwidth used by the existing system as it is for backward compatibility with the existing system.
  • the 3GPP LTE system supports bandwidths of 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz, and the 3GPP LTE-A system may configure a bandwidth of 20 MHz or more using only the bandwidth of the 3GPP LTE system.
  • broadband can be configured by defining new bandwidth without using the bandwidth of the existing system.
  • the system frequency band of a wireless communication system is divided into a plurality of carrier frequencies.
  • the carrier frequency means a center frequency of a cell.
  • a cell may mean a downlink frequency resource and an uplink frequency resource.
  • the cell may mean a combination of a downlink frequency resource and an optional uplink frequency resource.
  • CA carrier aggregation
  • the terminal In order to transmit and receive packet data through a specific cell, the terminal must first complete configuration for the specific cell.
  • the configuration refers to a state in which reception of system information necessary for data transmission and reception for a corresponding cell is completed.
  • the configuration may include a general process of receiving common physical layer parameters required for data transmission and reception, media access control (MAC) layer parameters, or parameters required for a specific operation in the RRC layer.
  • MAC media access control
  • the cell in the configuration complete state may exist in an activation or deactivation state.
  • activation means that data is transmitted or received or is in a ready state.
  • the UE may monitor or receive a control channel (PDCCH) and a data channel (PDSCH) of an activated cell in order to identify resources (which may be frequency, time, etc.) allocated thereto.
  • PDCCH control channel
  • PDSCH data channel
  • Deactivation means that transmission or reception of traffic data is impossible, and measurement or transmission of minimum information is possible.
  • the terminal may receive system information (SI) required for packet reception from the deactivated cell.
  • SI system information
  • the terminal does not monitor or receive the control channel (PDCCH) and data channel (PDSCH) of the deactivated cell in order to check the resources (may be frequency, time, etc.) allocated to them.
  • PDCH control channel
  • PDSCH data channel
  • the cell may be divided into a primary cell, a secondary cell, and a serving cell.
  • the primary cell refers to a cell operating at a primary frequency, and is a cell in which the terminal performs an initial connection establishment procedure or connection reestablishment with the base station, or is indicated as a primary cell in a handover process. It means a cell.
  • the secondary cell refers to a cell operating at the secondary frequency, and is established and used to provide additional radio resources once the RRC connection is established.
  • the serving cell is configured as a primary cell when the carrier aggregation is not set or the terminal cannot provide carrier aggregation.
  • the term serving cell indicates a cell configured for the terminal and may be configured in plural.
  • One serving cell may be configured with one downlink component carrier or a pair of ⁇ downlink component carrier, uplink component carrier ⁇ .
  • the plurality of serving cells may be configured as a set consisting of one or a plurality of primary cells and all secondary cells.
  • a primary component carrier refers to a component carrier (CC) corresponding to a primary cell.
  • the PCC is a CC in which the terminal initially makes a connection (connection or RRC connection) with the base station among several CCs.
  • the PCC is a special CC that manages a connection (Connection or RRC Connection) for signaling regarding a plurality of CCs and manages UE context, which is connection information related to a terminal.
  • the PCC is connected to the terminal and always exists in the active state in the RRC connected mode.
  • the downlink component carrier corresponding to the primary cell is called a downlink primary component carrier (DL PCC), and the uplink component carrier corresponding to the primary cell is called an uplink major component carrier (UL PCC).
  • DL PCC downlink primary component carrier
  • U PCC uplink major component carrier
  • Secondary component carrier refers to a CC corresponding to the secondary cell. That is, the SCC is a CC allocated to the terminal other than the PCC, and the SCC is an extended carrier for the additional resource allocation other than the PCC and may be divided into an activated or deactivated state.
  • the downlink component carrier corresponding to the secondary cell is referred to as a DL secondary CC (DL SCC), and the uplink component carrier corresponding to the secondary cell is referred to as an uplink secondary component carrier (UL SCC).
  • DL SCC DL secondary CC
  • UL SCC uplink secondary component carrier
  • the primary cell and the secondary cell have the following characteristics.
  • the primary cell is used for transmission of the PUCCH.
  • the primary cell is always activated, while the secondary cell is a carrier that is activated / deactivated according to specific conditions.
  • RLF Radio Link Failure
  • the primary cell may be changed by a security key change or a handover procedure accompanying a RACH (Random Access CHannel) procedure.
  • NAS non-access stratum
  • the primary cell is always configured with a pair of DL PCC and UL PCC.
  • a different CC may be configured as a primary cell for each UE.
  • the primary cell can be replaced only through a handover, cell selection / cell reselection process.
  • RRC signaling may be used to transmit system information of a dedicated secondary cell.
  • the downlink component carrier may configure one serving cell, and the downlink component carrier and the uplink component carrier may be connected to configure one serving cell.
  • the serving cell is not configured with only one uplink component carrier.
  • the activation / deactivation of the component carrier is equivalent to the concept of activation / deactivation of the serving cell.
  • activation of serving cell 1 means activation of DL CC1.
  • serving cell 2 assumes that DL CC2 and UL CC2 are configured to be configured, activation of serving cell 2 means activation of DL CC2 and UL CC2.
  • each component carrier may correspond to a serving cell.
  • the number of component carriers aggregated between the downlink and the uplink may be set differently.
  • the case where the number of downlink CCs and the number of uplink CCs are the same is called symmetric aggregation, and when the number is different, it is called asymmetric aggregation.
  • the size (ie bandwidth) of the CCs may be different. For example, assuming that 5 CCs are used for a 70 MHz band configuration, 5 MHz CC (carrier # 0) + 20 MHz CC (carrier # 1) + 20 MHz CC (carrier # 2) + 20 MHz CC (carrier # 3) It may be configured as + 5MHz CC (carrier # 4).
  • a plurality of component carriers (CCs), that is, a plurality of serving cells may be supported.
  • Such a carrier aggregation system may support cross-carrier scheduling.
  • Cross-carrier scheduling is a resource allocation of a PDSCH transmitted on another component carrier through a PDCCH transmitted on a specific component carrier and / or other components other than the component carrier basically linked with the specific component carrier.
  • a scheduling method for resource allocation of a PUSCH transmitted through a carrier That is, the PDCCH and the PDSCH may be transmitted through different downlink CCs, and the PUSCH may be transmitted through another uplink CC other than the uplink CC linked with the downlink CC through which the PDCCH including the UL grant is transmitted. .
  • a carrier indicator indicating a DL CC / UL CC through which a PDSCH / PUSCH for which PDCCH provides control information is transmitted is required.
  • a field including such a carrier indicator is hereinafter called a carrier indication field (CIF).
  • a carrier aggregation system supporting cross carrier scheduling may include a carrier indication field (CIF) in a conventional downlink control information (DCI) format.
  • CIF carrier indication field
  • DCI downlink control information
  • 3 bits may be extended, and the PDCCH structure may include an existing coding method, Resource allocation methods (ie, CCE-based resource mapping) can be reused.
  • FIG. 8 illustrates cross-carrier scheduling in a carrier aggregation system.
  • the base station may set a PDCCH monitoring DL CC (monitoring CC) set.
  • the PDCCH monitoring DL CC set includes some DL CCs among the aggregated DL CCs, and when cross-carrier scheduling is configured, the UE performs PDCCH monitoring / decoding only for DL CCs included in the PDCCH monitoring DL CC set. In other words, the base station transmits the PDCCH for the PDSCH / PUSCH to be scheduled only through the DL CC included in the PDCCH monitoring DL CC set.
  • the PDCCH monitoring DL CC set may be configured UE-specifically, UE group-specifically, or cell-specifically.
  • three DL CCs (DL CC A, DL CC B, and DL CC C) are aggregated, and DL CC A is set to PDCCH monitoring DL CC.
  • the UE may receive the DL grant for the PDSCH of the DL CC A, the DL CC B, and the DL CC C through the PDCCH of the DL CC A.
  • the DCI transmitted through the PDCCH of the DL CC A may include the CIF to indicate which DCI the DLI is.
  • the value of the CIF is the same as the value of the serving cell index.
  • the serving sell index is transmitted to the UE through an RRC signal.
  • the serving sell index includes a value used to identify a serving cell, that is, a primary cell (primary cell) or a secondary cell (secondary cell). For example, a value of 0 can represent a primary cell (primary cell).
  • CA carrier aggregation
  • the inter-band CA is a method of aggregating and using each CC existing in different bands
  • the intra-band CA is a method of aggregating and using each CC in the same frequency band.
  • the CA technology is more specifically, intra-band contiguous CA, intra-band non-contiguous CA and inter-band discontinuity. Non-Contiguous) CA.
  • CA 9 is a conceptual diagram illustrating intra-band carrier aggregation (CA).
  • FIG. 9A shows an intraband continguous CA
  • FIG. 9B shows an intraband non-continguous CA.
  • CA discussed in LTE-Advance is an intra-band Contiguous CA shown in FIG. 9A and an intra-band non-continuity shown in FIG. 9B. Contiguous) can be divided into CA.
  • FIG. 10 is a conceptual diagram illustrating inter-band carrier aggregation according to an embodiment disclosed herein.
  • FIG. 10 (a) shows the combination of low band and high band for inter band CA
  • FIG. 10 (b) shows the combination of similar frequency band for inter band CA.
  • interband carrier aggregation is a low-band and high-band carrier having different RF characteristics of inter-band CA.
  • the inter-band CA between the C-bands and the C-bands has similar radio frequency (RF) characteristics, so that a similar RF terminal can be used for each component carrier. It can be divided into inter-band CA.
  • F UL_low means the lowest frequency of the uplink operating band.
  • F UL_high means the highest frequency of the uplink operating band.
  • F DL_low means the lowest frequency of the downlink operating band.
  • F DL_high means the highest frequency of the downlink operating band.
  • frequency allocation organizations in each country may assign specific frequencies to service providers according to the circumstances of each country.
  • CA band class and the corresponding guard band are shown in the table below.
  • N RB _ agg is the number of RBs aggregated in the aggregation channel band.
  • Table 4 shows a set of bandwidths corresponding to each CA configuration.
  • CA configuration represents an operating band and a CA bandwidth class.
  • CA_1C means operating band 2 of Table 2 and CA band class C of Table 3. All CA action classes may apply to bands not shown in the above table.
  • CA configuration represents an operating band and a CA bandwidth class.
  • CA_1C means operating band 2 of Table 2 and CA band class C of Table 3. All CA action classes may apply to bands not shown in the above table.
  • FIG. 11 illustrates the concept of unwanted emission
  • FIG. 12 specifically illustrates emission in an outer band of the unnecessary emission illustrated in FIG. 11
  • FIG. 13 illustrates a channel band (MHz) and resources illustrated in FIG. 11. The relationship of the block RB is shown.
  • any transmitter transmits a signal on an allocated channel bandwidth within any E-UTRA band.
  • the channel bandwidth is defined, as can be seen with reference to FIG. That is, the transmission bandwidth is set smaller than the channel bandwidth (BWChannel).
  • the transmission bandwidth is set by a plurality of resource blocks (RBs).
  • RBs resource blocks
  • the outer channel is the highest and lowest frequency separated by the channel bandwidth.
  • the 3GPP LTE system supports 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz as channel bandwidths.
  • the relationship between the channel bandwidth and the number of resource blocks is shown in the table below.
  • f OOB means the magnitude of the frequency of the Out Of Band (OOB).
  • OOB Out Of Band
  • spurious radiation refers to the emission of unwanted waves from a intended transmission band to a frequency band far away.
  • 3GPP Release 10 defines a basic spurious emission (SE) that should not be exceeded, depending on the frequency range.
  • SE basic spurious emission
  • the illustrated UTRAACLR1 is a rate of leakage into the adjacent channel 1302, that is, the UTRA channel, when the terminal immediately transmits on the E-UTRA channel 1301, for the UTRA, i.e. Adjacent channel leakage ratio.
  • the UTRAACLR2 leaks to the adjacent channel 1303, that is, the UTRA channel, that is, the adjacent channel. Leakage ratio.
  • the E-UTRAACLR when the UE transmits on the E-UTRA channel 1301, the rate of leakage to the adjacent channel 1304, that is, the E-UTRA channel, that is, the adjacent channel leakage ratio to be.
  • the interference due to the radiation caused by the base station transmission can reduce the amount of interference introduced into the adjacent band by the high cost and the design of a large size RF filter due to the characteristics of the base station to less than the allowed criteria.
  • the terminal it is difficult to completely prevent the entry into the adjacent band due to the limitation of the terminal size, the price limit for the power amplifier or pre-duplex filter RF element.
  • FIG. 14 is an exemplary view illustrating a method of limiting transmission power of a terminal.
  • the terminal 100 performs a transmission by limiting the transmission power.
  • the Maximum Power Reduction (MPR) value is less linear to the power amplifier (PA) if the peak-to-average power ratio (PAPR) is large.
  • PAPR peak-to-average power ratio
  • a maximum MPR value of 2 dB can be applied. This is shown in the table below.
  • Table 6 above shows the MPR values for power classes 1 and 3.
  • a multi-clustered transmission is adopted by a user equipment in a single component carrier (CC) to simultaneously transmit a PUSCH and a PUCCH.
  • the size of the IM3 component meaning the distortion signal generated due to intermodulation
  • the terminal may act as a greater interference in the adjacent band, the general spurious emission and the Adjacent Channel Leakage Ratio (ACLR), which are the emission requirements of the terminal, which the terminal must observe uplink transmission.
  • MPR values may be set as follows to satisfy a general SEM (General Spectrum Emission Mask).
  • MPR CEIL ⁇ M A , 0.5 ⁇
  • A N RB_alloc / N RB .
  • N RB _ agg is the number of RBs in the channel band
  • N RB _ alloc represents the total number of RBs transmitted simultaneously.
  • CEIL ⁇ M A 0.5 ⁇ means a function to round in 0.5 dB increments. That is, MPR '[3.0, 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0].
  • the MPR value shown in Equation 2 is an MPR value applied when a general PA (Power Amplifier) is used. If a high-efficiency PA is being studied recently, a higher level of MPR value may be required.
  • PA Power Amplifier
  • the channel bandwidth of the uplink can be increased up to 40 MHz (20 MHz + 20 MHz), and thus a larger MPR value is required.
  • Table 7 above shows the MPR values for power class 3.
  • an MPR value of up to 3 dB may be applied according to a modulation scheme.
  • the MPR value should be satisfied.
  • MPR CEIL ⁇ MA, 0.5 ⁇
  • the base station may transmit a network signal (NS) to the terminal 100 to apply A-MPR (Additional Maximum Power Reduction).
  • NS Network Signal
  • A-MPR Additional Maximum Power Reduction
  • the A-MPR transmits a network signal (NS) to the terminal 100 operating in a specific operating band so that the base station does not affect the adjacent band or the like.
  • the transmission power is additionally determined by applying the A-MPR.
  • the carrier A is assigned to the operating band 13 of the operating band 13 shown in Table 2 777 MHz ⁇ 787 MHz and the downlink 746 MHz ⁇ 756 MHz are in service.
  • public safety net in the adjacent 769 ⁇ 775MHz band public safety net can be operated in North America.
  • the public safety net and band 13 are only about 2 MHz apart.
  • the public safety net may be operated in the neighboring 768-776 MHz band in North America. In this case, the public safety net and band 13 are only about 1 MHz apart.
  • CBW channel bandwidth
  • the present invention proposes a method for reducing UE transmit power required to protect a public safety net in the US outside the border and coexist without interference.
  • 16 is an exemplary view showing a frequency band considered in the present invention.
  • FIG. 16 (a) is for showing the effect of the Canadian terminal on the US public safety net (769-775 MHz) at the border region of the United States and Canada
  • FIG. 16 (b) shows that the terminal in Canada is a Canadian public safety net ( To see the effect of interference on 768-776 MHz).
  • the first is to look at the impact of the attack system on existing systems from a system capacity perspective.
  • the approach is to perform a system simulation with the amount of interference coming into the existing system to see how much of the interference is acceptable.
  • the amount of interference is determined by the criteria that allow for less than 5% of system capacity reduction in existing systems.
  • RF simulation is a means for mathematically modeling non-linear analog RF elements that a terminal experiences when transmitting on the uplink to observe how inter-modulation or harmonics caused by these devices go out of band.
  • SEM-Spectral Emission Mask standard-specific terminal emission mask
  • in-band emission such as carrier leakage (I / Q image)
  • ACLR- adjacent band leakage power
  • the amount of interference allowed in adjacent bands is determined and the limit is exceeded in the simulation, the amount of terminal transmission power is reduced by a certain amount, or the terminal transmission resource block size and position are changed to some extent. Check if the amount of interference can be adjusted.
  • the amount of transmission power required is determined through RF simulation, which is generally used in the standard, among the above-described methods.
  • the allowable leakage power to the public safety net was set to -57dBm / 6.25kHz as in the existing Band 13 10MHz channel bandwidth.
  • the RF simulation for reducing out-of-band leakage power and required terminal transmission power will be described.
  • the simulation was performed as follows in FIG. 16 and the frequency configuration.
  • the simulations were also divided into two cases where the transmit 5 MHz band is at the left edge of the band 13 (close to the public safety net) and at the right edge (far from the public safety net).
  • the simulations were performed by dividing the guard band at 1 MHz (Canada) and the guard band at 2 MHz (Canada-US border).
  • 17A, 17B, 18A, and 18B show experimental results for limiting a transmission strategy.
  • the operating points of the predefined RF components for the simulation are as follows;
  • UTRA ACLR2 36 dBc (for full RB allocation)
  • Spurious emission band UE co-existence -57dBm / 6.25kHz (for public safety net)
  • the unit dBc represents a relative magnitude based on the power magnitude of the carrier frequency.
  • Carrier leakage is carrier leakage, which is an additional sinusoidal waveform with a frequency equal to the modulated carrier frequency.
  • Counter IM3 Counter Intermodulation Distortion refers to the elements caused by nonlinear devices such as mixers and power amplifiers in RF systems.
  • FIG. 17 (a) shows an experimental result of the A-MPR for the first 5 MHz of the uplink band of the band 13 in an environment in which the public safety net is 2 MHz from the band 13.
  • 17 (b) shows the results of the A-MPR test for the second 5 MHz of the uplink band of the band 13 in an environment where the public safety net is 2 MHz from the band 13.
  • FIG. 18 (a) shows an experimental result of A-MPR for the first 5 MHz of the uplink band of band 13 in an environment where the public safety net is 1 MHz away from band 13. And (b) is a test result of the A-MPR for the second 5MHz of the uplink band of the band 13 in an environment where the public safety net is 1MHz away from the band 13.
  • the value of A-MPR required for the first 5 MHz is approximately 2 dB greater for the 1 MHz guard band than for the 2 MHz guard band.
  • RB start indicates the lowest RB index of the transport resource block.
  • L CRB represents the length of consecutive resource block allocations.
  • the value of A-MPR is shown in the table as follows.
  • the value of A-MPR is shown in the table as follows.
  • RBstart value, LCRB value and A-MPR value given in Tables 9 and 10 below may be changed within a few ranges.
  • RBstart value, LCRB value and A-MPR value given in Tables 9 and 10 below may be changed within a few ranges.
  • the base station should instruct the terminal to further reduce the transmission power through network signaling. Only when the terminal receives the network signaling, the UE recognizes that there is a public safety network in the adjacent band, and thus, the transmission RB start position and the RB size through the transmission power reduction table (Table 9 or Table 10 of the present invention) calculated in advance in the terminal. This reduces the transmission power.
  • the terminal transmit power should be set to A-MPR which is about 2 dB higher than the maximum value in the case of the 1 MHz guard band compared to the 2 MHz guard band. That is, different A-MPR tables should be applied to the case where the guard band is 1MHz and 2MHz, respectively. Comparing Table 9 and Table 10, it can be seen that the A-MPR value to be applied requires a larger value than the guard band 2MHz when the guard band 1MHz.
  • A-MPR using NS-07 at 10 MHz bandwidth as shown in Table 8 may be applied, but this value requires excessive A-MPR.
  • NS may affect a public safety net in the US.
  • -07 A-MPR values such as those added in Table 9 to Table 8 can be applied through network signaling.
  • Embodiments of the invention may be implemented through various means.
  • embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof. Specifically, this will be described with reference to FIG. 21.
  • the carrier A is assigned to service in the uplink of the operating band 13 shown in Table 2 777 MHz ⁇ 787 MHz and the downlink 746 MHz ⁇ 756 MHz.
  • the public safety net can be operated in the adjacent 769 ⁇ 775MHz band separated from the uplink by about 2MHz in North America.
  • the public safety net may be operated in an adjacent 768 to 776 MHz band away from the uplink by 1 MHz.
  • the base station 200 of the service provider A uses a master information block (MIB) and a system information block (SIB) as the terminal 100. send.
  • MIB master information block
  • SIB system information block
  • the system information block (SIB) may include one or more of information on an operating band of the base station 200 and information on an uplink (UL) bandwidth among the operating bands shown in Table 2.
  • the information on the UL bandwidth may include information about the number of resource blocks (RBs).
  • the terminal 100 receives information on the operating band 13 shown in Table 2 through the system information block (SIB).
  • the terminal 100 transmits a scheduling request (SR) to the base station 200.
  • SR scheduling request
  • the base station 200 performs uplink resource allocation according to the scheduling request (SR), and transmits an uplink grant.
  • SR scheduling request
  • the base station 200 transmits a network signal regarding power reduction to the terminal 100.
  • the terminal 100 determines the value of the A-MPR according to Table 9 or Table 0 as described above. Subsequently, the terminal 100 performs uplink transmission with reduced power.
  • the value of A-MPR can be determined according to Table 10.
  • the value of A-MPR may be determined according to Table 9.
  • an appropriate A-MPR value is determined according to RB_Start (ie, start position of RB) and L_CRB (number of contiguous resource blocks).
  • Embodiments of the present invention described above may be implemented through various means.
  • embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof.
  • 20 is a block diagram illustrating a wireless communication system in which an embodiment of the present invention is implemented.
  • the base station 200 includes a processor 201, a memory 202, and an RF unit 203.
  • the memory 202 is connected to the processor 201 and stores various information for driving the processor 201.
  • the RF unit 203 is connected to the processor 201 to transmit and / or receive a radio signal.
  • the processor 201 implements the proposed functions, processes and / or methods. In the above-described embodiment, the operation of the base station may be implemented by the processor 51.
  • the wireless device 100 includes a processor 101, a memory 102, and an RF unit 103.
  • the memory 102 is connected to the processor 101 and stores various information for driving the processor 101.
  • the RF unit 103 is connected to the processor 101 and transmits and / or receives a radio signal.
  • the processor 101 implements the proposed functions, processes and / or methods. In the above-described embodiment, the operation of the wireless device may be implemented by the processor 101.
  • the processor may include application-specific integrated circuits (ASICs), other chipsets, logic circuits, and / or data processing devices.
  • the memory may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and / or other storage device.
  • the RF unit may include a baseband circuit for processing a radio signal.
  • the above-described technique may be implemented as a module (process, function, etc.) for performing the above-described function.
  • the module may be stored in memory and executed by a processor.
  • the memory may be internal or external to the processor and may be coupled to the processor by various well known means.
  • the present invention can be used in a terminal, base station, or other equipment of a wireless mobile communication system.

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PCT/KR2013/006978 2012-08-13 2013-08-02 Procédé et terminal pour effectuer une émission en liaison montante à puissance réduite Ceased WO2014027775A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016159513A1 (fr) * 2015-04-01 2016-10-06 엘지전자(주) Procédé et appareil pour transmettre des données dans un système de communication sans fil
WO2017016478A1 (fr) * 2015-07-29 2017-02-02 中兴通讯股份有限公司 Procédé d'augmentation de trafic utilisateur dans un système lte, dispositif et station de base

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9386543B2 (en) * 2014-04-21 2016-07-05 Google Technology Holdings LLC Methods and devices for calculation of uplink transmission power
US20160381644A1 (en) * 2015-06-26 2016-12-29 Qualcomm Incorporated Techniques for controlling transmit power of a user equipment operating in a wireless communication system
US10306562B2 (en) * 2015-10-29 2019-05-28 Qualcomm Incorporated Transport format combination selection during self-jamming interference
EP3398391B1 (fr) * 2015-12-31 2023-03-15 Apple Inc. Demande de programmation dans des systèmes à ultra-haute fréquence
US10236924B2 (en) * 2016-03-31 2019-03-19 Corning Optical Communications Wireless Ltd Reducing out-of-channel noise in a wireless distribution system (WDS)
US10735969B2 (en) * 2018-02-22 2020-08-04 T-Mobile Usa, Inc. 600 MHz spectrum access systems and methods
FI3777355T3 (fi) 2018-04-05 2024-05-29 Nokia Technologies Oy Ylimääräinen maksimitehon vähentäminen langattomien verkkojen nousevan siirtotien lähetykseen
WO2021228568A1 (fr) * 2020-05-15 2021-11-18 Nokia Technologies Oy Réduction de puissance maximale basée sur des défaillances tx et rx
US12177793B2 (en) * 2021-12-15 2024-12-24 Qualcomm Incorporated Methods and apparatus for determining maximum power reduction for uplink transmission

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110081936A1 (en) * 2009-10-02 2011-04-07 Interdigital Patent Holdings, Inc. Method and apparatus for controlling transmit power of transmissions on more than one component carrier
KR20110050329A (ko) * 2009-11-06 2011-05-13 엘지전자 주식회사 무선 통신 시스템에서 단말 송신 전력 제어 방법 및 이를 위한 장치
US20110319120A1 (en) * 2010-06-29 2011-12-29 Qualcomm Incorporated Interaction Between Maximum Power Reduction and Power Scaling in Wireless Networks
KR20120010255A (ko) * 2009-04-27 2012-02-02 가부시키가이샤 엔티티 도코모 유저장치, 기지국장치 및 통신제어방법
KR20120040196A (ko) * 2009-06-18 2012-04-26 콸콤 인코포레이티드 멀티-캐리어 고속 업링크 패킷 액세스를 위한 전력 스케일링

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010082888A1 (fr) * 2009-01-14 2010-07-22 Telefonaktiebolaget L M Ericsson (Publ) Procédé et système dans un système de communication sans fil
US8213537B2 (en) * 2009-01-23 2012-07-03 Verizon Patent And Licensing Inc. Apparatuses, systems, and methods for reducing spurious emissions resulting from carrier leakage
US9031526B2 (en) * 2012-06-19 2015-05-12 Motorola Solutions, Inc. Method and apparatus for in-channel interference cancellation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120010255A (ko) * 2009-04-27 2012-02-02 가부시키가이샤 엔티티 도코모 유저장치, 기지국장치 및 통신제어방법
KR20120040196A (ko) * 2009-06-18 2012-04-26 콸콤 인코포레이티드 멀티-캐리어 고속 업링크 패킷 액세스를 위한 전력 스케일링
US20110081936A1 (en) * 2009-10-02 2011-04-07 Interdigital Patent Holdings, Inc. Method and apparatus for controlling transmit power of transmissions on more than one component carrier
KR20110050329A (ko) * 2009-11-06 2011-05-13 엘지전자 주식회사 무선 통신 시스템에서 단말 송신 전력 제어 방법 및 이를 위한 장치
US20110319120A1 (en) * 2010-06-29 2011-12-29 Qualcomm Incorporated Interaction Between Maximum Power Reduction and Power Scaling in Wireless Networks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016159513A1 (fr) * 2015-04-01 2016-10-06 엘지전자(주) Procédé et appareil pour transmettre des données dans un système de communication sans fil
US10454650B2 (en) 2015-04-01 2019-10-22 Lg Electronics Inc. Method and apparatus for transmitting data in wireless communication system
WO2017016478A1 (fr) * 2015-07-29 2017-02-02 中兴通讯股份有限公司 Procédé d'augmentation de trafic utilisateur dans un système lte, dispositif et station de base

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